Description

Fluoroboric Acid is a strong inorganic acid and a key source of the tetrafluoroborate anion, widely utilized in industrial electrochemistry and metal surface treatment. Its primary commercial value lies in its ability to provide a stable, soluble fluoride source in highly acidic environments, enabling precise and efficient processes. This makes it an essential raw material for manufacturers in the electronics, metal finishing, and chemical synthesis sectors seeking reliable performance and consistent quality.

Application

• Electroplating & Metal Finishing: As a primary electrolyte component for high-speed tin, lead, and tin-lead alloy electroplating, particularly in the electronics industry for PCB manufacturing.
• Aluminum Surface Treatment: Used in chemical brightening and etching baths for aluminum to achieve a highly reflective, smooth surface finish.
• Catalysis: Serves as a catalyst or catalyst precursor in various organic synthesis reactions, including polymerization and alkylation processes.
• Fluoroborate Salt Production: Acts as the key starting material for manufacturing a range of metal fluoroborate salts (e.g., copper, nickel, zinc fluoroborate) used in specialized plating applications.
• Glass Etching & Cleaning: Employed in formulations for etching glass and for cleaning metal surfaces prior to bonding or coating.
• Laboratory Reagent: Used as a stable source of fluoride ions in analytical chemistry and research.

Basic Information

Product Name	Fluoroboric Acid
CAS No.	16872-11-0
Molecular Formula	HBF4
Molecular Weight	87.81 g/mol
Synonyms	Tetrafluoroboric Acid; Hydrogen Tetrafluoroborate; Borofluoric Acid; Fluoboric Acid; HBF4; Hydrofluoroboric Acid; Fluoroboric Acid Solution
EINECS	240-898-3

Quality Control

Our Fluoroboric Acid is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including assay, impurity profiling, and physical property checks. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from incompatible materials such as strong bases and organic compounds. The product is a strong acid and moisture-sensitive; ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture and to minimize fume release.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (as HBF4)	≥ 48.0 % w/w
Fluoride (as F)	≤ 0.5 %
Sulfate (as SO4)	≤ 0.01 %
Chloride (as Cl)	≤ 0.005 %
Iron (Fe)	≤ 10 ppm
Lead (Pb)	≤ 5 ppm
Density at 20°C	~1.37 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.